react native中ios判断相机是否授权，没授权打开手机设置

CameraPermissionManager.h

#import <React/RCTBridgeModule.h>

@interface CameraPermissionManager : NSObject <RCTBridgeModule>

@end
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CameraPermissionManager.m

#import "CameraPermissionManager.h"
#import <AVFoundation/AVCaptureDevice.h>

@implementation CameraPermissionManager

RCT_EXPORT_MODULE();

RCT_EXPORT_METHOD(checkCameraStatus:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
{
    AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
    
    if (status == AVAuthorizationStatusAuthorized) {
        resolve(@"authorized");
    } else if (status == AVAuthorizationStatusNotDetermined) {
        resolve(@"undetermined");
    } else if(status == AVAuthorizationStatusDenied || status == AVAuthorizationStatusRestricted){
        resolve(@"rejected");
    } else {
        resolve(@"denied");
    }
}

@end

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cameraPermiss.js

import {NativeModules} from 'react-native';

export default NativeModules.CameraPermissionManager;
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使用

import cameraPermiss from '../cameraPermiss.js'

//判断用户是否相机授权
  const cameraPermiss = async () => {
    if (Platform.OS == 'android') {
      const response = await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.CAMERA);
      console.log("[相机授权]", response)
      if (response != 'granted') {
        //用户拒绝
        Linking.openSettings();
      } 
    } else {
      const response = await cameraPermiss.checkCameraStatus();
      console.log("[相机授权]", response)
      if (response == 'rejected') {
        //用户拒绝
        Linking.openSettings();
      } 
    }

  }
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